XML Sitemap Link Counter & Technical SEO Auditor
Count links, run technical SEO audits, inspect hreflang tags, and generate llms.txt files for modern AI models. 100% client-side raw XML stream extraction.
V3.4 Engine
WebAssemblyDirect in-browser XML tree parser capable of streaming 50,000+ nested links in under 1.5 seconds. 100% client-side privacy with zero cloud transmission.
The Architectural Bottleneck: Why Browsers Freeze on Sitemaps
Standard web browsers attempt to render XML files containing tens of thousands of URLs by constructing a full DOM tree with heavy XSLT styling. This locks the main UI thread, spiking RAM usage and causing crashes. LinkExtractor replaces DOM bloat with a zero-copy streaming parser.
Browser Tab Freeze & Memory Leaks
Browsers force 50,000 URL nodes into interactive visual DOM trees. As a consequence, complex sitemaps crash browser tabs, mask broken endpoints, and omit vital SEO metadata.
- close12–40 seconds delay rendering large multi-megabyte sitemaps
- closeNo recursive child sitemap traversal or index tree resolution
- closeZero validation for hreflang reciprocity or canonical tags
- closeNo export option — requiring manual copy-pasting of raw XML code
WebAssembly & Direct Chunk Streaming
LinkExtractor intercepts the raw stream, bypasses XSLT formatting completely, and parses XML chunks on a separate worker thread. The interface stays buttery smooth at 60 FPS.
- check50,000+ URLs parsed and indexed in under 1.5 seconds flat
- checkAutonomous recursive discovery across multi-tier sitemap indexes
- checkBidirectional hreflang verification and cluster error detection
- checkOne-click sanitized CSV, JSON, and structured llms.txt exports
Engineered for Complete Sitemap Clarity
Six specialized modules built directly into your Chrome browser, transforming opaque XML files into actionable technical SEO and AI intelligence.
Live In-Page Audit HUD & Real-time Counter
Floating heads-up display attaches directly to your active browser tab. Instantly displays total URLs, unique paths, response statuses, and indexable pages as the stream progresses.
Domain Sitemap Hunter & Robots.txt Prober
Navigating any domain? LinkExtractor probes robots.txt and tests 14+ common sitemap URL patterns automatically to discover hidden and unlinked indexes.
Raw Stream XML Extractor & 50K Limit Guard
Google sitemap protocols mandate maximums of 50,000 URLs and 50MB uncompressed per file. LinkExtractor flags protocol violations instantly before search engine bots crawl your site.
Multilingual Hreflang Cluster Auditor
Validates language annotations, returns reciprocal link status, identifies missing x-default tags, and visualizes cross-regional URL clusters across global enterprise architectures.
GEO Readiness & 1-Click llms.txt Generator
Generative Engine Optimization (GEO) enables LLMs like ChatGPT, Claude, and Perplexity to index your high-priority pages. Synthesize a clean, markdown-ready llms.txt file directly from your sitemap.
Virtualized Explorer & CSV/JSON Export
Search, filter by regex, sort by priority or changefreq, and isolate 404 or canonical anomalies. Export sanitized clean URL lists to CSV, JSON, or plain text in milliseconds.
Experience Zero-Lag XML Streaming
Test how our stream parser extracts URLs, verifies status codes, and generates AI digests instantly.
Test Real-Time Sitemap Streaming
Paste any domain or XML URL to preview instantaneous metrics without installing anything.
Want this audit on live browser tabs automatically?
Install LinkExtractor Chrome Extension for floating on-page counts and instant 1-click CSV exports.
Engineered for SEO & Engineering Teams
Whether you are debugging indexing regressions or prepping a company's web assets for generative AI crawlers, LinkExtractor fits directly into your daily toolchain.
Technical SEO Specialists
Verify newly published content is accurately indexed, spot 404 links before crawl budget is wasted, and ensure sitemap indexes correctly split at 50,000 URLs.
AI & GEO Engineers
Transform structured XML documents into formatted markdown feeds and llms.txt files for retrieval-augmented generation (RAG) and generative AI discovery engines.
International Marketers
Audit localized subdomains, validate hreflang tag reciprocity across dozens of locales, and ensure geo-targeted pages do not compete against one another in search.
Web Developers & DevOps
Verify automated CI/CD sitemap generation pipelines during staging. Catch invalid XML schemas, unescaped ampersands, and malformed tags before deployment.
100% Client-Side Privacy Guarantee
Unlike online web tools that upload your proprietary sitemaps, unreleased staging URLs, or private company endpoints to external servers, LinkExtractor performs 100% of its computation locally inside your browser's sandboxed environment.
Zero Server Uploads
XML payloads are processed in local memory and discarded upon tab close.
activeTab Sandboxing
Only executes when explicitly summoned by user action on an active tab.
No User Tracking
No third-party analytics, behavioral cookies, or tracking pixels injected.
Audit Internal & Staging Sites Securely
Safely test intranet staging environments behind VPNs, localhost dev ports, and authenticated endpoints without exposing confidential URL paths.
Install Secure Chrome Extensionopen_in_newLoved by SEO Pros, Developers & Marketers
See how thousands of users streamline their technical SEO audits and XML sitemap counting with LinkExtractor.
Based on 352+ verified ratings on Chrome Web Store & community
"This extension saves me at least 30 minutes every audit. Chrome usually freezes when opening 45,000 URL sitemaps, but LinkExtractor stream engine handles it in under a second flat. Essential tool."
Sarah Jenkins
Senior Technical SEO @ MetricScale
"The Sitemap Hunter tool built into this extension found hidden sitemaps on our competitor sites in 3 seconds. The CSV export with hreflang breakdown is cleaner than Screaming Frog outputs."
Marcus Vance
Growth Lead @ SaaSify
"Zero permissions creep, runs entirely offline in browser memory, no telemetry. The on-page floating badge means I don't even need to open the popup. Indispensable."
Elena Rostova
Freelance SEO Consultant
"We manage 20+ publications with complex sitemap indexes. Checking if sub-sitemaps were properly indexed took forever before. Now it's literally 1 click."
David Chen
Head of Content @ TechPulse
Frequently Asked Questions
Everything you need to know about XML sitemaps, technical limits, Chrome performance, and LinkExtractor capabilities.
Ready for Instant Sitemap Intelligence?
Stop crashing browser tabs and waiting on slow crawlers. Count URLs, audit hreflang tags, and generate llms.txt files in seconds.